BIO 169 Exam 1 Practice Questions and Answers | 100% Pass
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Course
Bio 169
Institution
Bio 169
BIO 169 Exam 1 Practice Questions and
Answers | 100% Pass
Which of the following are important sources of resistance to blood flow? - Answer️️ -
All of the Above
A _________ allows an organ to recieve blood from more then one arterial source or
drain blood into more then one vein. - Answer...
BIO 169 Exam 1 Practice Questions and
Answers | 100% Pass
Which of the following are important sources of resistance to blood flow? - Answer✔️✔️-
All of the Above
A _________ allows an organ to recieve blood from more then one arterial source or
drain blood into more then one vein. - Answer✔️✔️-vascular anastomoses
Arteries can be best defined as - Answer✔️✔️-vessels that carry blood away from the
heart.
A decrease in hematocrit will result in a decrease in ____________ resulting in a
decrease in blood pressure. - Answer✔️✔️-blood viscosity
The systolic pressure - Answer✔️✔️-all of the above
Unlike most organs when an area of the lungs has a low oxygen content, perhaps
because of disease or damage to the tissue, the blood vessels in that area -
Answer✔️✔️-undergo vasoconstriction so less blood will reach those tissues.
Vasodilation - Answer✔️✔️-is an increase in the diameter of a blood vessel.
Which of the following is a correct statement concerning continuous capillaries? -
Answer✔️✔️-constitute the blood-brain barrier
What is the relationship between the velocity blood flows through vessels and the cross-
sectional area of the vessels? - Answer✔️✔️-The higher the cross sectional area the
slower the blood flows, like in capillaries.
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